A post shared by VETEMENTS (@vetements_official) on Apr 12, 2017 at 4:08am PDT

Why? We genuinely have no idea.

Perhaps this is the logical next step in a world that values massive, sculpted butts more than ever. Perhaps Vetements is just bored of the same old denim. Perhaps we’ve all been missing out on the joy of a cool breeze against our cheeks.

Whatever. The ‘why’ isn’t the bit that matters. What’s important is that the hot new trend is bum windows. Get your cracks ready.